Enzymes affect a chemical reaction, making it easier to occur by reducing the activation energy; <u>option B</u>
<h3>What are enzymes?</h3>
Enzymes are biological molecules that alter the rate of chemical reactions occurring in the body.
Enzymes usually speed up the rate of reactions by making the reactions less energy-demanding, that is by lowering the activation energy of the biochemical reaction.
Enzymes are usually proteins, hence are affected by the conditions of temperature and pH.
Enzymes are also very specific in the substrate they act upon.
Learn more about enzymes at: brainly.com/question/14577353
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